Executable segment sizes:
IROM : 248372 - code in flash (default or ICACHE_FLASH_ATTR)
IRAM : 27960 / 32768 - code in IRAM (ICACHE_RAM_ATTR, ISRs...)
DATA : 1320 ) - initialized variables (global, static) in RAM/HEAP
RODATA : 2224 ) / 81920 - constants (global, static) in RAM/HEAP
BSS : 25552 ) - zeroed variables (global, static) in RAM/HEAP
Sketch uses 279876 bytes (26%) of program storage space. Maximum is 1044464 bytes.
Global variables use 29096 bytes (35%) of dynamic memory, leaving 52824 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM4
Traceback (most recent call last):
File "C:\Users\Zhang Jie\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/upload.py", line 65, in <module>
esptool.main(cmdline)
File "C:/Users/Zhang Jie/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 2889, in main
esp = chip_class(each_port, initial_baud, args.trace)
File "C:/Users/Zhang Jie/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 237, in __init__
self._port = serial.serial_for_url(port)
File "C:/Users/Zhang Jie/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/pyserial\serial\__init__.py", line 88, in serial_for_url
instance.open()
File "C:/Users/Zhang Jie/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/pyserial\serial\serialwin32.py", line 78, in open
self._reconfigure_port()
File "C:/Users/Zhang Jie/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/pyserial\serial\serialwin32.py", line 222, in _reconfigure_port
'Original message: {!r}'.format(ctypes.WinError()))
serial.serialutil.SerialException: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31)
serial.serialutil.SerialException: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.',